Senior Analytical Scientist

About Stoke:

Stoke Therapeutics (Nasdaq: STOK) is a biotechnology company dedicated to restoring protein expression by harnessing the body's potential with RNA medicine. Stoke is developing antisense oligonucleotides (ASOs) to selectively restore naturally occurring protein levels. Stoke's first medicine in development, zorevunersen, has demonstrated the potential for disease modification in patients with Dravet syndrome and is currently being evaluated in a Phase 3 study. Stoke entered into a strategic collaboration with Biogen in 2025 to develop and commercialize zorevunersen for Dravet syndrome. Under the collaboration, Stoke retains exclusive rights for zorevunersen in the United States, Canada, and Mexico; Biogen receives exclusive rest of world commercialization rights

Stoke's initial focus for its TANGO platform is on diseases of the central nervous system and the eye that are caused by a loss of ~50% of normal protein levels (haploinsufficiency).

Stoke has identified STK-002 as a clinical candidate for the potential treatment of autosomal dominant optic atrophy (ADOA), the most common inherited optic nerve disorder. The company is also pursuing a potential new medicine for Syngap1, a severe and rare neurodevelopmental disorder, in collaboration with Acadia Pharmaceuticals.

Proof of concept has been demonstrated in other organs, tissues, and systems, supporting broad potential for the Company's proprietary approach.

Position Purpose:

We are seeking a highly skilled and motivated Senior Analytical Scientist to join our Analytical and Formulation Sciences team. The ideal candidate will have strong hands-on experience in UPLC method development, and mass spectrometry-based characterization of oligonucleotide and conjugates. This role is critical to supporting the development of innovative oligonucleotide-based therapeutics. This position will report into the Director, CMC.

Key Responsibilities:

• Develop, optimize, and validate UPLC methods for the analysis of oligonucleotides and their conjugates.
• Conduct mass spectrometry (LC-MS, HRMS, MS/MS) analyses to characterize oligonucleotide and its conjugates.
• Interpret analytical data to support product development, stability studies, and release testing.
• Collaborate with cross-functional teams including Process Development, Quality, and Regulatory Affairs.
• Author technical reports, method development summaries, and regulatory submissions (e.g., IND, BLA).
• Perform routine formulation preparation and characterization of oligonucleotide drug products for preclinical studies.

Required Skills & Experience:

• D. in Analytical Chemistry, Biochemistry, Pharmaceutical Sciences, or a related field with 6+ years of relevant industry experience; or M.S. with 10+ years of experience; or Bachelor's with 16+ years of experience.
• Proven experience in UPLC method development for oligonucleotides or nucleic acid-based therapeutics.
• Strong expertise with mass spectrometry for structural and quantitative analysis of oligonucleotide and conjugates is desired.
• Strong data analysis skills and proficiency with analytical software (e.g., Empower, MassLynx, Xcalibur).
• Excellent communication, documentation, and organizational skills.
• Ability to work independently and collaboratively in a fast-paced environment.
• Knowledge of ICH guidelines and regulatory expectations for analytical method validation.

Location(s):

Stoke operates sites in Bedford, MA, and Cambridge, MA. This position is based in our Bedford, MA location.

Travel:

This position will require approximately 5% travel.

Culture & Values:

At Stoke, we believe that innovation, the ability to successfully advance our ground-breaking science and having fun as a team are enhanced by being together in person, at least periodically. We allow for flexibility in work arrangements that balance individual's needs and preferences with the needs of our business and our desire to foster a culture of collaboration and innovation.

Our values guide our work to deliver meaningful medicines for people who need them. We are committed to being true to ourselves, to our colleagues, and to the people with severe diseases who are counting on us. We embrace diversity within a unique culture that is defined by our values. Our employee-led Diversity, Inclusion, and Belonging Committee (DIB) underscores the importance of DIB to who we are and what we do.

Benefits & Compensation:

At Stoke Therapeutics we are proud to offer comprehensive and competitive employee benefits, including medical, dental and vision insurance; life, long and short-term disability insurance; Paid Parental Leave; a 401K program with company match, unlimited vacation time, and an Employee Stock Purchase Program (ESPP). Compensation is market competitive for the industry and directly commensurate with experience. All positions are bonus and stock eligible.

Interested candidates: Please visit Stoke's website to learn more and apply directly to the position listed on our Career Center.

For more information, visit stoketherapeutics.com or follow the company on X at @StokeTx.

All applicants will receive consideration for employment without regard to race, color, age, religion, sex, sexual orientation, gender identity, national origin, physical or mental disability or protected veteran status.

Stoke participates in E-Verify.